Purpose:
The instrument is designed and made as per the requirements about penetrometer and its accessories stipulated in the National Standard GB/T 4985 "Test Methods for Needle Penetration of Wax".
1. The needle penetration of wax is expressed as the depth that a standard needle of 100 g vertically penetrates into a wax sample without any measurable friction in 5 s at 25 °C.
2. The test temperature for wax penetration is 25 °C in general.
3. Each wax penetration is 0.1 mm. It is directly shown on display.
The instrument is designed and made as per the requirements about penetrometer and its accessories stipulated in the National Standard GB/T 4985 "Test Methods for Needle Penetration of Wax".
1. The needle penetration of wax is expressed as the depth that a standard needle of 100 g vertically penetrates into a wax sample without any measurable friction in 5 s at 25 °C.
2. The test temperature for wax penetration is 25 °C in general.
3. Each wax penetration is 0.1 mm. It is directly shown on display.
Technical parameters
1. Timing selection: 5, 8, 10, 12, 30 or 60 s;
2. Timing error: less than ±0.1 s;
3. Penetration accuracy: ±0.1 penetration;
4. Maximum penetration: 600 penetrations;
5. Standard needle: 2.5±0.05 g;
6. Constant temperature bath: made of harden glass;
7. Mold: 25×32×3mm, a brass cylinder;
8. Brass board: 65×40×6.5mm;
9. Heating power: 220 W;
1. Timing selection: 5, 8, 10, 12, 30 or 60 s;
2. Timing error: less than ±0.1 s;
3. Penetration accuracy: ±0.1 penetration;
4. Maximum penetration: 600 penetrations;
5. Standard needle: 2.5±0.05 g;
6. Constant temperature bath: made of harden glass;
7. Mold: 25×32×3mm, a brass cylinder;
8. Brass board: 65×40×6.5mm;
9. Heating power: 220 W;